ClassID:

137187

F01L2001/2444 - CPC Classification

Classification description:

Valve-gear or valve arrangements, e.g. lift-valve gear; Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]

Recent Application in this class:
#1
20250382903
2025-12-18

VARIABLE DISPLACEMENT VALVETRAIN SYSTEMS WITH ROCKER SHAFT PORTING AND INSERT SLEEVES FOR ENGINE CYLINDER DEACTIVATION

#2
20250361823
2025-11-27

ENGINE BRAKE HYDRAULIC CAPSULE WITH PLUNGER RETURN MECHANISM

#3
20250172074
2025-05-29

ROCKER ARM ASSEMBLY WITH ROTATION-LOCKING MECHANISM

#4
20250109699
2025-04-03

VARIABLE VALVE DEVICE

#5
20250043704
2025-02-06

HYDRAULIC CAPSULE FOR HYDRAULIC LASH ADJUSTMENT

#6
20250003357
2025-01-02

System for synchronizing switching

#7
20240287920
2024-08-29

Rocker arm with a reset slider disposed in a lash adjustment assembly

#8
20240254899
2024-08-01

Rocker arm assembly with rotation-locking mechanism

#9
20240200476
2024-06-20

Valve actuation system comprising rocker assemblies with one-way coupling therebetween

#10
20240052762
2024-02-15

Combined valve actuating devices with specialized actuating cams for hydraulic lash self-adjustment

#11
20230332520
2023-10-19

Rocker arm mechanism and engine assembly

#12
20230235687
2023-07-27

COMPACT ENGINE BRAKE WITH PRESSURE-CONTROL RESET

#13
20220307392
2022-09-29

Compact engine brake with pressure-control reset

#14
20220290586
2022-09-15

HLA arrangement using cold formed plunger and manufacturing simplifications

#15
20220251978
2022-08-11

Variable valve train for an engine braking mode

#16
20220205373
2022-06-30

Exhaust valve opening system

#17
20220205372
2022-06-30

Compression release type engine brake

#18
20220170390
2022-06-02

Self-resetting single-valve double-piston hydraulic drive device and method for overhead cam engine

#19
20220074322
2022-03-10

Oil cooling for electromagnetic latch housed in rocker arm

#20
20220034266
2022-02-03

Self-contained compression brake control module for compression-release brake system of an internal combustion engine

#21
20220025825
2022-01-27

Valve train system for extended duration intake valve opening

#22
20220003131
2022-01-06

Oil control assembly and engine system for variable valve actuation

#23
20210270153
2021-09-02

HYDRAULIC ASSISTED ENGINE BRAKE MECHANISM FOR VALVE TRAIN

#24
20210156319
2021-05-27

Self-contained compression brake control module for compression-release brake system of an internal combustion engine

#25
20210131315
2021-05-06

Rocker based bleeder engine brake

#26
20210102482
2021-04-08

Socket module of compression release type engine brake and operating method of engine brake using thereof

#27
20210087950
2021-03-25

Rocker assembly with a hydraulic lash adjuster

#28
20200370448
2020-11-26

Engine system and components for cylinder deactivation and early exhaust valve opening

#29
20200318554
2020-10-08

Valve rocker arm assembly, variable air distribution mechanism and engine

#30
20200232351
2020-07-23

Tappet

#31
20200232350
2020-07-23

Hydraulic lash adjuster

#32
20200191026
2020-06-18

Rocker arm assembly for engine braking

#33
20200182101
2020-06-11

Cylinder head

#34
20200123939
2020-04-23

Engine valve lifter assemblies

#35
20200095903
2020-03-26

ENGINE CONTROL DEVICE

#36
20200056514
2020-02-20

Hybrid valve train system

#37
20200003089
2020-01-02

Oil flow system for engine cylinder deactivation

#38
20190360363
2019-11-28

Valve train carrier assembly

#39
20190257226
2019-08-22

Cylinder deactivation deactivating roller finger follower having improved packaging

#40
20190257219
2019-08-22

VALVE TRAIN FOR AN INTERNAL COMBUSTION ENGINE

#41
20190178118
2019-06-13

Rocker arm assembly for engine braking

#42
20190048762
2019-02-14

Variable valve control system having common valve and engine system having the same

#43
20180355770
2018-12-13

Oil flow system for engine cylinder deactivation

#44
20180355767
2018-12-13

Camshaft adjuster

#45
20180320563
2018-11-08

Valve train lever

#46
20180283231
2018-10-04

Camshaft adjusting device

#47
20180245487
2018-08-30

Camshaft adjusting device

#48
20180238205
2018-08-23

Internal combustion engine

#49
20180231116
2018-08-16

Drive unit for straddled vehicle

#50
20180209309
2018-07-26

Valve train carrier assembly

#51
20180187576
2018-07-05

Support element

#52
20180163578
2018-06-14

VARIABLE VALVE LIFT APPARATUS

#53
20180094551
2018-04-05

Switchable roller finger follower with integrated leakage path for de-aeration

#54
20180080350
2018-03-22

Valve train for an engine

#55
20180051597
2018-02-22

Valve bridge with internal oil transportation

#56
20180045085
2018-02-15

Dual feed hydraulic lash adjuster with integrated de-aeration restriction

#57
20170321576
2017-11-09

Oil control for rocker arm and hydraulic lash adjuster

#58
20170234173
2017-08-17

Hydraulic lash adjuster

#59
20170175597
2017-06-22

Rocker arm assembly for engine braking

#60
20170175592
2017-06-22

System and method for variable actuation of a valve of an internalcombustion engine, with an electrically operated control valve having an improved control

#61
20170081986
2017-03-23

Lost motion differential valve actuation

#62
20170074128
2017-03-16

Cylinder deactivation deactivating roller finger follower having improved packaging

#63
20170044937
2017-02-16

Hydraulic lash adjuster

#64
20170022856
2017-01-26

Internal combustion engine

#65
20170002703
2017-01-05

Combined oil filter and restrictor assembly

#66
20160376936
2016-12-29

Hydraulic lash adjuster

#67
20160319708
2016-11-03

Engine valve lifter oil flow control and anti-rotation feature

#68
20160319707
2016-11-03

Hydraulic supply device for valve stopping mechanism

#69
20160319706
2016-11-03

External oil groove on a hydraulic lash adjuster

#70
20160312666
2016-10-27

Switchable finger follower with lost motion spring lost stroke minimizer

#71
20160273416
2016-09-22

Valve actuation system having rocker-located hydraulic reservoir

#72
20150369087
2015-12-24

Centrifugal process to eliminate air in high pressure chamber of hydraulic lash adjuster

#73
20150330265
2015-11-19

Control device of internal combustion engine and variable valve device of internal combustion engine

#74
20150240670
2015-08-27

Switching roller finger follower with rapid transition from locked to unlocked mode and method thereof

#75
20140366827
2014-12-18

Lash adjuster

#76
20140283776
2014-09-25

Dual feed hydraulic lash adjuster for valve actuating mechanism

#77
20130205992
2013-08-15

Variable valve universal bracket design

#78
20120291889
2012-11-22

Oil control valve and variable valve lift system provided with the same

#79
20110247580
2011-10-13

Control valve mounting system

#80
20110220055
2011-09-15

Modular engine assembly and fluid control assembly for hydraulically-actuated mechanism

#81
20100212629
2010-08-26

Oxygen flow reduction during engine start/stop operation

#82
20090223468
2009-09-10

Valve-deactivating oil manifold assembly having an integral direct injection fuel pump and roller hydraulic pump lifter

#83
20090173296
2009-07-09

Approach for adaptive control of cam profile switching for combustion mode transitions

#84
20090151679
2009-06-18

Hydraulic pressure control device of variable valve system

#85
20090050102
2009-02-26

Oil filter having an integral metering orifice for a valve lifter oil manifold assembly

#86
20080295787
2008-12-04

Hydraulic control system for a switching valve train

#87
20080230020
2008-09-25

Lifter oil manifold assembly for variable activation and deactivation of valves in an internal combustion engine

#88
20080178828
2008-07-31

Single hydraulic circuit module for dual lift of multiple engine valves

#89
20080110426
2008-05-15

Mounting module of oil control valve for tappet control in cylinder deactivation engine

#90
20070272181
2007-11-29

Electrohydraulic control module

#91
20070240659
2007-10-18

Cylinder deactivation apparatus

#92
20070028877
2007-02-08

Detection of a specific faulted DOD electrohydraulic circuit

#93
20060207530
2006-09-21

Direct pressure feed air bleed system

#94
20060075980
2006-04-13

Lifter oil manifold assembly for V-type engines

#95
20050150561
2005-07-14

Electrohydraulic valve assembly for controlling operation of engine cylinders

#96
20050150553
2005-07-14

Electrohydraulic valve for controlling operation of an engine cylinder valve

#97
15938313
2019-08-27

Hydraulic system purging via position synchronized solenoid pulsing

#98
15921253
2019-06-18

Protection for hydraulic lifters